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kernel:export board to userland.

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Export the board variable to userland using sysenv. This
allows rc-scrips to perform device specific initialisation.

The board variable follows the following pattern

[ARCH]-[ARCHVARIANT]-[VENDOR]-[BOARD]-[BOARDVARIANT]

We currently we support the following boards:
X86-I586-GENERIC-GENERIC-GENERIC
ARM-ARMV7-TI-BBXM-GENERIC
ARM-ARMV7-TI-BB-WHITE
ARM-ARMV7-TI-BB-BLACK

Change-Id: I9e5f5f24f9a71cc9797cacb1aafb19499613f0be
This commit is contained in:
Kees Jongenburger 2013-11-29 14:31:31 +01:00
parent 43581a14ee
commit 7194772eae
2 changed files with 17 additions and 0 deletions
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16
kernel/arch/earm/pre_init.c
View file

@ -7,6 +7,7 @@
#include <minix/minlib.h>
#include <minix/const.h>
#include <minix/type.h>
#include <minix/board.h>
#include <minix/com.h>
#include <sys/types.h>
#include <sys/param.h>
@ -195,6 +196,21 @@ void get_parameters(u32_t ebx, kinfo_t *cbi)
/* let higher levels know what we are booting on */
mb_set_param(cbi->param_buf, ARCHVARNAME, "earm", cbi);
#ifdef AM335X
int id = get_board_id_by_short_name("A335BONE");
printf("BOARD ID=0x%08x\n",id);
const char * boardname = get_board_name(id);
printf("BOARD NAME=%s\n",boardname);
mb_set_param(cbi->param_buf, BOARDVARNAME,(char *) boardname, cbi);
#endif
#ifdef DM337x
int id = get_board_id_by_short_name("BBXM");
printf("BOARD ID=0x%08x\n",id);
const char * boardname = get_board_name(id);
printf("BOARD NAME=%s\n",boardname);
mb_set_param(cbi->param_buf, BOARDVARNAME,(char *) boardname, cbi);
#endif
/* round user stack down to leave a gap to catch kernel
* stack overflow; and to distinguish kernel and user addresses

1
kernel/arch/i386/pre_init.c
View file

@ -154,6 +154,7 @@ void get_parameters(u32_t ebx, kinfo_t *cbi)
/* let higher levels know what we are booting on */
mb_set_param(cbi->param_buf, ARCHVARNAME, "i386", cbi);
mb_set_param(cbi->param_buf, BOARDVARNAME, "i586", cbi);
/* round user stack down to leave a gap to catch kernel
* stack overflow; and to distinguish kernel and user addresses